docs: remove UA_868

[sashko]

Ukrainian legislation* was harmonised with the EU's, and UA_868 is now obsolete as it is identical to the EU_868.

• http://zakon.rada.gov.ua/laws/show/262-2026-%D0%BF

What did you change

Removed all mentions of the UA_868 and mentioned that EU_868 now includes Ukraine.

Why did you change it

• Remove UA_868 as obsolete firmware#10994
• http://zakon.rada.gov.ua/laws/show/262-2026-%D0%BF

Screenshots

Before

After

Summary by CodeRabbit

• Documentation

  • Updated LoRa region configuration guidance to reflect the current supported region values.
  • Removed Ukraine’s UA_868 option from regional limits and compatible device frequency lists.
  • Updated Ukraine’s documented regional mapping and regulatory reference link.

• Bug Fixes

  • Removed the obsolete UA_868 option from the frequency calculator, preventing it from being selected for frequency and slot calculations.

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[github-actions]

🤖 Docs Review

Hey @sashko! Thanks for the docs contribution! Here's a quick review:

Looks good! Thanks for helping improve the docs. 👍

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This is an automated review based on docs contribution guidelines.

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 33c86209-8321-4c86-b77c-63b30d5eb49d

📥 Commits

Reviewing files that changed from the base of the PR and between 6b5148a and 3e31c91.

📒 Files selected for processing (6)

• docs/blocks/_lora-regions.mdx
• docs/configuration/radio/lora.mdx
• docs/configuration/region-by-country.mdx
• docs/hardware/devices/b-and-q-consulting/nano/index.mdx
• docs/hardware/devices/community-supported/b-and-q-consulting/nano/index.mdx
• src/components/tools/FrequencyCalculator.tsx

💤 Files with no reviewable changes (2)

• src/components/tools/FrequencyCalculator.tsx
• docs/blocks/_lora-regions.mdx

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📝 Walkthrough

Walkthrough

Removed UA_868 from the frequency calculator and related LoRa documentation. Ukraine’s regional mapping now lists EU_868 and UA_433, with an updated regulatory source link.

Changes

UA_868 regional support removal

Layer / File(s)	Summary
Calculator region data src/components/tools/FrequencyCalculator.tsx	Removes the UA_868 frequency, duty-cycle, and power configuration from calculator region data.
Documentation and regional mapping docs/blocks/_lora-regions.mdx, docs/configuration/radio/lora.mdx, docs/configuration/region-by-country.mdx, docs/hardware/devices/.../nano/index.mdx	Removes UA_868 from region and device options, updates the CLI region list, and changes Ukraine’s mapping and regulatory link.

Estimated code review effort: 2 (Simple) | ~10 minutes

Poem

I’m a rabbit hopping through the bands,
Trimming UA_868 from the lands.
EU_868 now leads the way,
UA_433 joins the array.
Documentation follows bright—
Clean regional paths in sight!

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title is concise and clearly describes the main change: removing UA_868 references.
Description check	✅ Passed	The description matches the template with What/Why sections and before/after screenshots placeholders, and it explains the change and rationale.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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